<template>
	<header class="header">
		<h1>todos</h1>
		<input id="toggle-all" class="toggle-all" type="checkbox" v-model="isAll">
		<label for="toggle-all"></label>
		<input class="new-todo" placeholder="输入任务名称-回车确认" autofocus 
		v-model="name" 
		@keyup.enter="enter"
		 />
	</header>
</template>

<script>
	export default {
		props: ["arr"],

		data () {
			return {
				name: ""
			}
		},

		methods: {
			enter(){
				if(this.name.length <= 0) return

				this.$emit("enter", this.name)
				this.name = ''
			}
		},

		computed: {
			isAll: {
				get(){
					return this.arr.every(item => item.isDone)
				},
				set(val){
					return this.arr.forEach(item => item.isDone = val)
				}
			}
		}
	}
</script>
